Question: We removed humans from the scatterplot in Exercise 39 because our species was an outlier in life expectancy. The resulting scatterplot (below) shows two points

We removed humans from the scatterplot in Exercise 39 because our species was an outlier in life expectancy. The resulting scatterplot (below) shows two points that now may be of concern. The point in the upper right corner of this scatterplot is for elephants, and the other point at the far right is for hippos.

a) By removing one of these points, we could make the association appear to be stronger. Which point? Explain.
b) Would the slope of the line increase or decrease?
c) Should we just keep removing animals to increase the strength of the model? Explain.
d) If we remove elephants from the scatterplot, the slope of the regression line becomes 11.6 days per year.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a Hippos are more of a departure from thepattern Removing that ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Statistics Questions!

41. Elephants and hippos We removed humans from the scatterplot in Exercise 39 because our species was an outlier in life expectancy. The resulting scatterplot shows two points that now may be of...

41. Elephants and hippos We removed humans from the scatterplot in Exercise 39 because our species was an outlier in life expectancy. The resulting scatterplot (below) shows two points that now may...

Elephants and hippos We removed humans from the scatterplot in Exercise 39 because our species was an outlier in life expectancy. The resulting scatterplot (below) shows two points that now may be of...

Elephants and hippos. We removed humans from the scatterplot in Exercise 25 because our species was an outlier in life expectancy. The resulting scatterplot shows two points that now may be of...

Elephants and hippos We removed humans from the scatterplot in Exercise 31 because our species was an outlier in life expectancy. The resulting scatterplot shows two points that now may be of...

Elephants and hippos We removed humans from the scatterplot of the Gestation data in Exercise 45 because our species was an outlier in life expectancy. The resulting scatterplot (below) shows two...

39. Gestation For humans, pregnancy lasts about 280 days. In other species of animals, the length of time from conception to birth varies. Is there any evidence that the gestation period is related...

39. Gestation For humans, pregnancy lasts about nine months. In other species of animals, the length of time from conception to birth varies. Is there any evidence that the gestation period is...

For humans, pregnancy lasts about 280 days. In other species of animals, the length of time from conception to birth varies. Is there any evidence that the gestation period is related to the animal's...

MetroKlean LLC, a hazardous waste soil cleaning company, borrowed $2.5 million for 5 years to finance start-up costs for a new project involving site reclamation. The company expects to earn a real...

An auditor collected a random sample of about 100 invoices sent out in the current fiscal year and compared the amounts of these invoices to those of a second random sample of invoices in the prior...

1. List four reasons why indirect costs are allocated.

A man walks into a Target store to buy some t-shirts. Identify the facility layout that would be used to produce each product. A. Product B. Process C. Cellular D. Fixed-position

The paper Modeling and Measurements of Bus Service Reliability (Transportation Research [1978]: 253 256) studied various aspects of bus service and presented data on travel times (in minutes) from...

An advertisement for the 30 inch Wonder that appeared in the September 1983 issue of the journal Packaging claimed that the 30 inch Wonder weighs cases and bags up to 110 pounds and provides accuracy...

Suppose that your statistics professor returned your first midterm exam with only a z score written on it. She also told you that a histogram of the scores was approximately normal. How would you...

Gable Company uses three activity cost pools. Each pool has a cost driver. Information for Gable Company follows: Activity Cost Pools Machining Designing costs Setup costs Total Cost of Pool $236,300...

Which of the following statements is (are) true? (i) The statement of cash flows is a financial statement which reports on the flows of cash in and out of a business entity during an accounting...

Revo Company reports average total assets of $200,000, revenue of $57,000, net income of $19,000, and cash flow from operations of $24,000. (1) Compute its cash flow on total assets. (2) Is Revo's...